A mobile workbox for a concealed display screen

Abstract

The utility model relates to display screen technical field, and disclose a kind of mobile working box for hidden display screen, including box, lid and display screen body;The inner wall of box is slidably connected with connecting plate a and connecting plate b respectively through guide block;The inner chamber of connecting plate a and connecting plate b is rotatably connected with worm wheel through bearing, through the meshing transmission structure of worm wheel and worm, utilize the natural self-locking characteristic of worm gear mechanism, replace ordinary gear rack or the electric push rod without self-locking function of the ordinary gear rack or the electric push rod of the power failure downslide problem that easily appears in prior art, even encounter power interruption, the meshing relationship of worm wheel and worm can firmly lock the axial position of screw rod, avoid display screen body slowly downslide under the action of gravity due to its own weight, fundamentally eliminate the risk of display screen falling, collision damage when power failure, while guarantee the safety of operator, solve the core defects of poor equipment safety, display screen easily damaged in prior art.

Description

Technical Field

[0001] This utility model relates to the field of display screen lifting technology, specifically a mobile work box for a hidden display screen. Background Technology

[0002] The mobile work case for concealed displays is a product that combines modern design concepts with practical usage needs. It integrates the display screen into the inside of the case, which not only ensures the safety of the equipment but also improves the overall aesthetics and portability. Because the display screen is hidden inside the case and the exterior is sealed and sturdy, it can provide better dustproof, waterproof and shockproof performance, ensuring the safety of electronic devices during movement. Currently, the commonly used display screen lifting mechanisms on the market mainly rely on ordinary gear racks or electric push rods without self-locking function. These devices can meet most daily use needs, but in the event of a power outage, due to the large weight of the display screen itself, the display screen will slowly slide down under the action of gravity. This not only affects the safety of the equipment, but may also cause damage to the display screen during the sliding process. In view of this, the present invention solves the above-mentioned technical problems by proposing a mobile work box for a hidden display screen. Utility Model Content

[0003] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a mobile work box for a concealed display screen. Firstly, it utilizes a worm gear and worm shaft meshing transmission structure, taking advantage of the inherent self-locking characteristics of the worm gear mechanism, to replace the common gear and rack mechanism or electric push rods without self-locking function in existing technologies that are prone to slippage during power outages. Even in the event of a power interruption, the meshing relationship between the worm gear and worm shaft can firmly lock the axial position of the lead screw, preventing the display screen from slowly sliding down under its own weight. This fundamentally eliminates the risk of the display screen falling or being damaged by collision during power outages, while simultaneously ensuring the safety of the operator. It solves the problems of poor equipment safety and easy damage to the display screen in existing technologies. The core defect of the problem is the dual lifting structure, which combines the overall lifting of connecting plate a and connecting plate b with precise lifting by a lead screw. Compared to the single gear and rack or electric push rod lifting methods in existing technologies, this dual structure effectively expands the lifting range of the display screen body by using the meshing of gears and racks to drive the overall lifting of the connecting plates, adapting to the height requirements of different usage scenarios. On the other hand, it achieves precise lifting by using the helical transmission of the lead screw and worm gear, and the guide rod can limit the rotation of the lead screw, retaining only axial movement, ensuring that the display screen body does not tilt or shake during lifting, avoiding problems such as scratches on the display screen frame and damage to the interface caused by unstable lifting, and further improving the reliability of the equipment.

[0004] This utility model provides the following technical solution: a mobile work box for a concealed display screen, comprising a box body, a box cover, and a display screen body; The inner wall of the box is slidably connected to connecting plate a and connecting plate b via guide blocks; The inner cavities of the connecting plate a and the connecting plate b are rotatably connected to a worm gear via bearings. The top of the connecting plate b is fixedly connected to two connecting lugs. The inner cavities of the two connecting lugs are rotatably connected to a worm via bearings. The worm gear meshes with the worm. The inner wall of the worm gear is provided with internal threads, and the inner cavity of the worm gear is connected to a lead screw through the internal threads. One end of the lead screw is detachably connected to the bottom of the display screen body. The inner cavity of the connecting plate a is symmetrically slidably connected to two guide rods, one end of each guide rod being fixedly connected to the other end of the lead screw; The inner cavity of the box is equipped with an auxiliary lifting structure for driving the connecting plate a and the connecting plate b to rise and fall.

[0005] As a preferred embodiment of this utility model, the auxiliary lifting structure includes a rack fixedly connected to the bottom of the inner cavity of the housing, and a gear is embedded on the surface of the worm gear, the gear meshing with the rack.

[0006] As a preferred embodiment of this utility model, one end of the worm gear is provided with a driving component, and the driving component is connected to one end of the worm gear through a coupling.

[0007] As a preferred technical solution of this utility model, the box body and the box cover are detachably connected by a locking assembly. The locking assembly includes a duckbill buckle, a positioning groove and a positioning block. The positioning groove is opened on the top of the box body, the positioning block is fixed to the bottom of the box cover and is adapted to the positioning groove, and the duckbill buckle connects the box body and the box cover respectively.

[0008] As a preferred embodiment of this utility model, the front and rear surfaces of the box body and the top of the box cover are symmetrically provided with multiple mounting grooves, and the inner cavity of the mounting groove is rotatably connected to a handle.

[0009] As a preferred technical solution of this utility model, the four corners of the bottom of the box are detachably connected to support members, the support members are self-locking universal wheels, and shock-absorbing pads are provided between the support members and the box.

[0010] As a preferred embodiment of the present invention, the locking assembly further includes an elastic sealing gasket, which is embedded in the inner wall of the positioning groove.

[0011] As a preferred embodiment of this utility model, the driving component is a servo motor or a stepper motor, and a dust cover is provided on the outside of the driving component.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes a worm gear and worm shaft meshing transmission structure, taking advantage of the inherent self-locking characteristics of the worm gear and worm shaft mechanism, to replace the ordinary gear rack or electric push rod without self-locking function in the prior art, which is prone to slippage during power outages. Even in the event of a power outage, the meshing relationship between the worm gear and worm shaft can firmly lock the axial position of the lead screw, preventing the display screen from slowly sliding down under its own weight. This fundamentally eliminates the risk of the display screen falling and being damaged by collision during power outages, while ensuring the safety of operators and solving the core defects of poor equipment safety and easy damage to the display screen in the prior art.

[0013] This utility model features a dual lifting structure: "overall lifting of connecting plate a and connecting plate b, and precise lifting of the lead screw." Compared to the single gear and rack or electric push rod lifting methods in the prior art, this design, on the one hand, uses the meshing of gears and racks to drive the overall lifting of the connecting plates, effectively expanding the lifting range of the display screen body to adapt to the height requirements of different usage scenarios; on the other hand, it achieves precise lifting through the helical transmission of the lead screw and worm gear, and the guide rod can restrict the rotation of the lead screw, retaining only axial movement, ensuring that the display screen body is tilted and shaken during lifting, avoiding problems such as scratches on the display screen frame and damage to interfaces caused by unstable lifting, further improving the reliability of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram illustrating the lifting principle of the display screen body of this utility model; Figure 4 This is a schematic diagram of the worm gear structure of this utility model.

[0015] In the diagram: 1. Cabinet; 101. Cabinet cover; 102. Display screen body; 2. Connecting plate a; 201. Connecting plate b; 202. Worm gear; 203. Connecting ear plate; 204. Worm; 205. Lead screw; 206. Guide rod; 3. Rack; 301. Gear; 4. Drive component; 5. Duckbill buckle; 501. Positioning groove; 502. Positioning block; 6. Mounting groove; 601. Handle; 7. Support component. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4 As shown, a mobile work case for a concealed display screen includes a case body 1, a case cover 101, and a display screen body 102. The inner wall of the housing 1 is slidably connected to the connecting plate a2 and the connecting plate b201 via guide blocks; The inner cavities of connecting plate a2 and connecting plate b201 are rotatably connected to a worm gear 202 via bearings. The top of connecting plate b201 is fixedly connected to two connecting lugs 203. The inner cavities of the two connecting lugs 203 are rotatably connected to a worm 204 via bearings. The worm gear 202 meshes with the worm 204. The inner wall of the worm gear 202 is provided with internal threads, and the inner cavity of the worm gear 202 is connected to the lead screw 205 through the internal threads. One end of the lead screw 205 is detachably connected to the bottom of the display screen body 102. The inner cavity of the connecting plate a2 is symmetrically slidably connected with two guide rods 206, one end of each guide rod 206 being fixedly connected to the other end of the lead screw 205; The inner cavity of the housing 1 is equipped with an auxiliary lifting structure for driving the connecting plate a2 and the connecting plate b201 to rise and fall.

[0018] The auxiliary lifting structure includes a rack 3 fixedly connected to the bottom of the inner cavity of the housing 1, and a gear 301 embedded on the surface of the worm 204, which meshes with the rack 3.

[0019] One end of the worm gear 204 is provided with a driving component 4, which is connected to one end of the worm gear 204 via a coupling.

[0020] The box body 1 and the box cover 101 are detachably connected by a locking assembly. The locking assembly includes a duckbill buckle 5, a positioning groove 501 and a positioning block 502. The positioning groove 501 is opened on the top of the box body 1, and the positioning block 502 is fixed to the bottom of the box cover 101 and is adapted to the positioning groove 501. The duckbill buckle 5 connects the box body 1 and the box cover 101 respectively.

[0021] Multiple mounting slots 6 are symmetrically provided on the front and rear surfaces of the box body 1 and the top of the box cover 101. A handle 601 is rotatably connected to the inner cavity of the mounting slot 6.

[0022] Support members 7 are detachably connected to the four corners of the bottom of the box 1. The support members 7 are self-locking casters, and shock-absorbing pads are provided between the support members 7 and the box 1.

[0023] The locking assembly also includes an elastic sealing gasket, which is embedded in the inner wall of the positioning groove 501.

[0024] The driving component 4 is a servo motor or a stepper motor, and a dust cover is provided on the outside of the driving component 4.

[0025] When the display screen body 102 needs to be used, first release the locking state of the duckbill buckle 5 in the locking assembly, and lift the cover 101 upwards. At this time, the positioning block 502 at the bottom of the cover 101 separates from the positioning groove 501 at the top of the body 1 (the matching structure of the positioning block 502 and the positioning groove 501 can ensure the accurate alignment when the cover 101 is closed). The elastic sealing gasket in the locking assembly is embedded in the inner wall of the positioning groove 501. When the cover 101 is closed, it can fill the gap between the positioning block 502 and the positioning groove 501, thereby achieving a dustproof seal inside the box 1 and preventing dust from entering when it is not in use. Start the drive unit 4 (the drive unit 4 is a servo motor or a stepper motor, and the dust cover on its outside can prevent dust from entering the motor and affecting its life). The drive unit 4 transmits power to the worm 204 through the coupling, which drives the worm 204 to rotate around the bearing in the inner cavity of the connecting ear plate 203 (the connecting ear plate 203 is fixed to the top of the connecting plate b201 to provide stable support for the worm 204). When the worm 204 rotates, it simultaneously achieves dual power output: firstly, it drives the worm wheel 202 to rotate, and secondly, it drives the gear 301 embedded on its surface to move. Dual lifting and lowering motion: enables the extension and retraction of the display screen body 102; First lifting: Connecting plate a2 and connecting plate b201 are lifted as a whole (extended stroke); The gear 301 on the surface of the worm 204 meshes with the rack 3 fixed to the bottom of the inner cavity of the housing 1. When the worm 204 rotates, the gear 301 moves up and down along the length of the rack 3. The gear 301 moves synchronously with the worm 204, which in turn drives the connecting plate b201 connected to the worm 204 and the connecting plate a2 that cooperates with the connecting plate b201 (the two are indirectly connected through the worm wheel 202) to slide and rise along the guide block on the inner wall of the housing 1. This process realizes the overall position adjustment of the connecting plate a2 and the connecting plate b201, providing a basic lifting stroke for the display screen body 102. Second lifting mechanism: Screw 205 drives precise lifting of the display screen; As the worm 204 rotates, it meshes with the worm wheel 202, causing the worm wheel 202 to rotate around the bearings inside the connecting plate a2 and the connecting plate b201. The inner wall of the worm gear 202 is provided with an internal thread, and its inner cavity is engaged with the lead screw 205 through the internal thread. When the worm gear 202 rotates, the internal thread and the lead screw 205 form a helical drive, which pushes the lead screw 205 to move up and down along the axial direction. Two guide rods 206 are symmetrically slidably connected in the inner cavity of the connecting plate a2. One end of the guide rod is fixedly connected to the other end of the lead rod 205, which can restrict the lead rod 205 from rotating with the worm gear 202 (only axial movement is allowed), ensuring that the lead rod 205 drives the display screen body 102 (one end of the lead rod 205 is detachably connected to the bottom of the display screen body 102) to rise and fall smoothly. Dual lifting and synergistic effect: The overall lifting and scissor lifting of connecting plate a2 and connecting plate b201 expands the lifting and scissor lifting range of display screen body 102. The precise lifting and scissor lifting of screw 205 can finely adjust the extension height of display screen body 102, ultimately realizing the switching of display screen body 102 from the hidden state inside the cabinet 1 to the fully extended state (the reverse operation realizes the hiding). When the display screen body 102 is extended and put into use, the support members 7 (support members 7 are self-locking universal wheels) at the four corners of the bottom of the cabinet 1 can be switched to the self-locking state to lock the rotation and direction of the wheels and prevent the cabinet 1 from sliding; the shock-absorbing pads between the support members 7 and the cabinet 1 can absorb ground vibration and prevent vibration from being transmitted to the display screen body 102 and affecting its use. When the work box needs to be moved, the self-locking state of the support 7 is released. The handle 601, which is rotatably connected to the front and rear surfaces of the box body 1 and the inner cavity of the mounting groove 6 on the top of the box cover 101, can be easily pushed or pulled. The mounting groove 6 can be stored when the handle 601 is not in use to avoid protrusion and scratches.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable work case for a concealed display screen, comprising: Cabinet (1), cabinet cover (101) and display screen body (102); The feature is that the inner wall of the box (1) is slidably connected to the connecting plate a (2) and the connecting plate b (201) respectively through the guide block; The inner cavities of the connecting plate a (2) and the connecting plate b (201) are rotatably connected to a worm gear (202) via bearings. The top of the connecting plate b (201) is fixedly connected to two connecting ear plates (203). The inner cavities of the two connecting ear plates (203) are rotatably connected to a worm (204) via bearings. The worm gear (202) meshes with the worm (204). The inner wall of the worm gear (202) is provided with an internal thread, and the inner cavity of the worm gear (202) is connected to a lead screw (205) through the internal thread. One end of the lead screw (205) is detachably connected to the bottom of the display screen body (102). The inner cavity of the connecting plate a (2) is symmetrically slidably connected to two guide rods (206), one end of each guide rod (206) is fixedly connected to the other end of the lead screw (205); The inner cavity of the box (1) is provided with an auxiliary lifting structure for driving the connecting plate a (2) and the connecting plate b (201) to rise and fall.

2. The mobile work box for a concealed display screen according to claim 1, characterized in that: The auxiliary lifting structure includes a rack (3) fixedly connected to the bottom of the inner cavity of the housing (1), and a gear (301) is embedded on the surface of the worm (204), and the gear (301) meshes with the rack (3).

3. The mobile work box for a concealed display screen according to claim 2, characterized in that: One end of the worm (204) is provided with a driving member (4), and the driving member (4) is connected to one end of the worm (204) through a coupling.

4. The mobile work box for a concealed display screen according to claim 3, characterized in that: The box body (1) and the box cover (101) are detachably connected by a locking assembly. The locking assembly includes a duckbill buckle (5), a positioning groove (501) and a positioning block (502). The positioning groove (501) is opened on the top of the box body (1). The positioning block (502) is fixed to the bottom of the box cover (101) and is adapted to the positioning groove (501). The duckbill buckle (5) is connected to the box body (1) and the box cover (101) respectively.

5. A mobile work case for a concealed display screen according to claim 4, characterized in that: The front and rear surfaces of the box (1) and the top of the box cover (101) are symmetrically provided with multiple mounting slots (6), and the inner cavity of the mounting slot (6) is rotatably connected to a handle (601).

6. A mobile work case for a concealed display screen according to claim 5, characterized in that: The four corners of the bottom of the box (1) are detachably connected to support members (7), the support members (7) are self-locking casters, and shock-absorbing pads are provided between the support members (7) and the box (1).

7. A mobile work case for a concealed display screen according to claim 6, characterized in that: The locking assembly also includes an elastic sealing gasket, which is embedded in the inner wall of the positioning groove (501).

8. A mobile work case for a concealed display screen according to claim 7, characterized in that: The driving component (4) is a servo motor or a stepper motor, and a dust cover is provided on the outside of the driving component (4).

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